#include "config.h"
namespace lemon{
    void construct_graph_from_arclist(Graph& G, const std::vector<std::pair<int,int> >& arcs, int node_size);
    std::pair<int, int> read_binfile_to_arclist(const char* file_name, std::vector<std::pair<int, int>>& arcs);    
    unsigned int count_nodes(const char* file_name);
}